Don't timeout users entering OAuth info

[gdbelvin]

Note that this is an incomplete fix

Before

go run ./cmd/keytransparency-client/main.go post dazwilkin@google.com --client-secret=/Users/gbelvin/Downloads/client_secret_442418751519-0dgrd0631a9e0n1289g2ebp9evg6ln2m.apps.googleusercontent.com.json --insecure --data='dGVzdA==' --password=${PASSWORD} --kt-url=0.0.0.0:443 --verbose --logtostderr --timeout=10s
Go to the following link in your browser then type the authorization code:
Error: context deadline exceeded

After

go run ./cmd/keytransparency-client/main.go post dazwilkin@google.com --client-secret=/Users/gbelvin/Downloads/client_secret_442418751519-0dgrd0631a9e0n1289g2ebp9evg6ln2m.apps.googleusercontent.com.json --insecure --data='dGVzdA==' --password=${PASSWORD} --kt-url=0.0.0.0:443 --verbose --logtostderr
Go to the following link in your browser then type the authorization code:
xxxxxxxx
2019/02/07 19:39:08 ✓ Signed Map Head signature verified.
2019/02/07 19:39:08 ✓ Log inclusion proof verified.
I0207 19:39:08.291734   43214 client.go:145] Trusted root updated to TreeSize 1
2019/02/07 19:39:08 ✓ Log root updated.
2019/02/07 19:39:08 ✓ Commitment verified.
2019/02/07 19:39:08 ✓ VRF verified.
2019/02/07 19:39:08 ✓ map inclusion proof verified.
2019/02/07 19:39:08 Got current entry...
2019/02/07 19:39:08 Sending Update request...
2019/02/07 19:39:10 ✓ Signed Map Head signature verified.
2019/02/07 19:39:10 ✓ Log inclusion proof verified.
2019/02/07 19:39:12 ✓ Signed Map Head signature verified.
2019/02/07 19:39:12 ✓ Log inclusion proof verified.
2019/02/07 19:39:14 ✓ Signed Map Head signature verified.
2019/02/07 19:39:14 ✓ Log inclusion proof verified.
2019/02/07 19:39:16 ✓ Signed Map Head signature verified.
2019/02/07 19:39:16 ✓ Log inclusion proof verified.
2019/02/07 19:39:18 ✓ Signed Map Head signature verified.
2019/02/07 19:39:18 ✓ Log inclusion proof verified.
2019/02/07 19:39:20 ✓ Signed Map Head signature verified.
2019/02/07 19:39:20 ✓ Log inclusion proof verified.
Error: update failed: context deadline exceeded

[DazWilkin]

Checking

[codecov]

Codecov Report

Merging #1195 into master will decrease coverage by 0.14%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1195      +/-   ##
==========================================
- Coverage   65.01%   64.86%   -0.15%     
==========================================
  Files          46       46              
  Lines        3336     3336              
==========================================
- Hits         2169     2164       -5     
- Misses        810      813       +3     
- Partials      357      359       +2

Impacted Files	Coverage Δ
core/keyserver/revisions.go	63.92% <0%> (-1.9%)	⬇️
impl/sql/directory/storage.go	67.66% <0%> (-1.51%)	⬇️

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